The Light Blues boss hit out after Green - who is set to return to Ibrox in a consultancy role - warned the manager in a newspaper article today that he must win a cup this year and that simply delivering another league title would not be enough.

Hours later, Rangers crashed out of the first round of the Scottish League Cup 2-1 after extra-time to Forfar.

Speaking afterwards at Station Park, when asked for his thoughts on Green's remarks, McCoist said: "I was appalled by them to be quite honest with you.

"The self-acclaimed straight-talking Yorkshireman has again let himself down.

"His contempt and total lack of respect for my players, for our football club, for our support and Scottish football in general is appalling - and he is an embarrassment."

On Green's cup claims, McCoist added: "If it was a threat then the self-acclaimed straight-talking Yorkshireman should know that boys from the West of Scotland don't scare easily.

"If he does come back, I'll certainly go and pick him at the airport. I won't have a problem doing that.